Memory leak is possible if changes for audited entities are outside of transaction
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Key: HHH-5565
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-5565
Project: Hibernate Core
Issue Type: Bug
Components: envers
Affects Versions: 3.3.1
Environment: hibernate-core-3.3.1.GA.jar, jboss-envers-1.2.1-hibernate-3.3.jar
Reporter: Eugene Goroschenya
Envers always collects changes for audited objects in global (global per sessionFactory
instance) application map (auditConfiguration.auditSyncManager.auditSyncs<Transaction,
AuditSync>) even if transaction is inactive.
It leads to memory leak in application if there were changes (insert/update/delete) for
versioned objects outside of transaction (transaction.isActive() == false) because in this
case transaction is not committed where collected changes for current transaction are
removed from global map.
Possible solution is patch Envers to check if transaction is active (AuditEventListener in
onPostInsert/onPostUpdate/onPostDeleteonCollectionAction methods) before starting collect
changes for audited object.
Skip collecting (to prevent memory leak) if transaction is inactive and log WARN message
to indicate problem ("Couldn't create revision for entity ${entityName} because
transaction is not active.")
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